Extreme Desert Drive Extreme Desert Drive is an extension of an Intermediate drive but at a lot faster pace with a continuous drive-time on big rolling and difficult dunes. The difficulty level of climbs, ridge riding, criss-crossing will be more or less the same as the Intermediate level, but doing that over and over again at high speed requires special attention to be courageous but with extreme caution. If you and your vehicle are perfectly in-sync with fast-paced intermediate drive